diff --git a/include/boost/exception/exception.hpp b/include/boost/exception/exception.hpp
index ec1bf1b..2180d50 100644
--- a/include/boost/exception/exception.hpp
+++ b/include/boost/exception/exception.hpp
@@ -12,79 +12,79 @@
 
 namespace
 boost
-	{
-	template <class T>
-	class shared_ptr;
+    {
+    template <class T>
+    class shared_ptr;
 
-	namespace
-	exception_detail
-		{
-		class error_info_base;
+    namespace
+    exception_detail
+        {
+        class error_info_base;
 
-		struct
-		error_info_container:
-			public exception_detail::counted_base
-			{
-			virtual char const * what( std::type_info const & ) const = 0;
-			virtual shared_ptr<error_info_base const> get( std::type_info const & ) const = 0;
-			virtual void set( shared_ptr<error_info_base const> const & ) = 0;
-			};
-		}
+        struct
+        error_info_container:
+            public exception_detail::counted_base
+            {
+            virtual char const * what( std::type_info const & ) const = 0;
+            virtual shared_ptr<error_info_base const> get( std::type_info const & ) const = 0;
+            virtual void set( shared_ptr<error_info_base const> const & ) = 0;
+            };
+        }
 
-	template <class Tag,class T>
-	class error_info;
+    template <class Tag,class T>
+    class error_info;
 
-	template <class E,class Tag,class T>
-	E const & operator<<( E const &, error_info<Tag,T> const & );
+    template <class E,class Tag,class T>
+    E const & operator<<( E const &, error_info<Tag,T> const & );
 
-	template <class ErrorInfo,class E>
-	shared_ptr<typename ErrorInfo::value_type const> get_error_info( E const & );
+    template <class ErrorInfo,class E>
+    shared_ptr<typename ErrorInfo::value_type const> get_error_info( E const & );
 
-	class
-	exception
-		{
-		public:
+    class
+    exception
+        {
+        public:
 
-		virtual ~exception() throw()=0;
-		virtual char const * what() const throw();
+        virtual ~exception() throw()=0;
+        virtual char const * what() const throw();
 
-		private:
+        private:
 
-		shared_ptr<exception_detail::error_info_base const> get( std::type_info const & ) const;
-		void set( shared_ptr<exception_detail::error_info_base const> const & ) const;
+        shared_ptr<exception_detail::error_info_base const> get( std::type_info const & ) const;
+        void set( shared_ptr<exception_detail::error_info_base const> const & ) const;
 
-		template <class E,class Tag,class T>
-		friend E const & operator<<( E const &, error_info<Tag,T> const & );
+        template <class E,class Tag,class T>
+        friend E const & operator<<( E const &, error_info<Tag,T> const & );
 
-		template <class ErrorInfo,class E>
-		friend shared_ptr<typename ErrorInfo::value_type const> get_error_info( E const & );
+        template <class ErrorInfo,class E>
+        friend shared_ptr<typename ErrorInfo::value_type const> get_error_info( E const & );
 
-		intrusive_ptr<exception_detail::error_info_container> mutable data_;
-		};
+        intrusive_ptr<exception_detail::error_info_container> mutable data_;
+        };
 
-	inline
-	exception::
-	~exception() throw()
-		{
-		}
+    inline
+    exception::
+    ~exception() throw()
+        {
+        }
 
-	inline
-	char const *
-	exception::
-	what() const throw()
-		{
-		if( data_ )
-			try
-				{
-				char const * w = data_->what(typeid(*this));
-				BOOST_ASSERT(0!=w);
-				return w;
-				}
-			catch(...)
-				{
-				}
-		return typeid(*this).name();
-		}
-	}
+    inline
+    char const *
+    exception::
+    what() const throw()
+        {
+        if( data_ )
+            try
+                {
+                char const * w = data_->what(typeid(*this));
+                BOOST_ASSERT(0!=w);
+                return w;
+                }
+            catch(...)
+                {
+                }
+        return typeid(*this).name();
+        }
+    }
 
 #endif